baber/WOPTO huggingface dataset:
Patent GB-906669-A (GB)
Title: Improvements in or relating to screen printing machines
IPC: B41F15/42
Filed: 1959-12-21
Abstract: 906,669. Stencilling-apparatus. ICHINOSE, H. Dec. 21, 1959 [May 27, 1959], No. 43341/59. Class 100 (2). A screen printing machine comprises a bed associated with each printing frame of the machine, the bed being mounted on rails so as to be movable from one side to the other of the associated frame, cam means displaceably mounted on each bed, and squeegee elevating members bearing on the cam means and supporting side-by-side parallel squeegees, the arrangement being such that prior to movement of the bed in one direction the cam means is displaced relative to the bed to elevate some of the squeegees and lower others while prior to movement of the bed in the opposite direction the cam means is displaced relative to the bed to elevate said other squeegee and lower said some. A web to be printed is moved intermittently on an endless belt under a plurality of stencil frames, over each of which is reciprocated an assembly of squeegees. Mounted for vertical movement in slots in a reciprocating member 20, Figs. 5 and 6, are a plurality of squeegees 13, 14, 15, 16, 17, 18, each including two upper side wings 34. The member 20 is reciprocable on rails 21, and to it is pivoted at either side at 40 a cylinder 41 for each squeegee accommodated in a cylinder 44, a projection 46 on which engages a groove 47 in the wing 34. The squeegee is forced downwards towards the screen 56 by means of springs 42, spindles 43, and adjustable wing-nuts 45, and the wings rest on elevating members 28, 30, 32, 29, 31, 33, which rest in grooves 22, 23, 24, 25, 26, 27 in a cam member 21. The member 21 is reciprocated by chains 48, and the arrangement is such that when the member 21 moves to the right the squeegees 16, 17, 18 are raised clear of the screen 56 while the squeegees 13, 14, 15 are allowed to move down on to the screen. The vertical faces of the cam grooves then engage the members 28, 30, 32 and move the assembly across the screen. When the member 21 moves to the left the action is reversed. When the assembly is stationary, it can be moved to a central position, so that all squeegees are at the same height, lightly touching the screen. To remove a squeegee, the nuts 45 are loosened, the cylinders 44 raised, and the assemblies 41, 44 swung outwards about the pivots 40.
Patent GB-1164485-A (GB)
Title: Substituted Thiophosphoric and Thiophosphonic Esters
IPC: C07F9/165
Filed: 1966-09-28
Abstract: 1,164,485. Insecticidal and acaricidal thiophosphorus preparations. STAUFFER CHEMICAL CO. 28 Sept., 1966 [21 Oct., 1965], No. 43418/66. Heading ASE. [Also in Division C2]  An insecticidal and acaricidal composition comprises an effective amount of a compound of the formula  (1) wherein R is a lower alkyl; halophenoxy substituted lower alkyl; lower alkenyl; lower alkyaryl, naphthyl; phenyl; substituted phenyl where the substituents is halogen, lower alkoxy, lower alkyl or nitro; bornyl; isobornyl; cyclohexyl; lower alkoxyalkyl; N-phthalimidomethyl and S-substituted thioethyl where the substituent is lower alkyl, phenyl naphthyl, halophenyl or alkylphenyl; R<SP>1</SP> and R<SP>2</SP> are H, lower alkyl; phenyl, lower alkenyl or lower alkynyl; R<SP>3</SP> is a lower alkyl and R<SP>4</SP> is a lower alkoxy or lower alkyl [lower alkyl and lower alkoxy have from 1 to 10 C atoms inclusive; lower alkenyl and lower alkynyl have from 2 to 10 C atoms inclusive] and X and Y are O or S and an inert adjuvant. The compositions may be employed in the form of emulsions, non-aqueous.solutions, wettable powders, vapours, dusts and dyes.
Patent GB-1243013-A (GB)
Title: Olefinic copolymers
Inventor: LONGI PAOLO
IPC: D01F6/46
Filed: 1968-09-12
Abstract: 1,243,013. Preparation of vulcanizable ethylene-propylene-diene polymers. MONTECATINI EDISON SpA. 12 Sept., 1968 [12 Sept., 1967], No. 43435/68. Heading C3P. An unsaturated, vulcanizable polymer of ethylene, propylene and a non-conjugated di- or poly-enic hydrocarbon monomer, having respective monomeric molar contents of 70 to 85%, 15 to 30%, and 0.05 to 3%, and being amorphous in the relaxed state but crystallizable on stretching, is obtained by polymerization in the presence of a vanadium compound and an organoaluminium compound, the molar ratio of propylene to ethylene being from 0.5 to 1À5:1. In the examples, the termonomer is 6- methyl - tetrahydroindene, 5,7 - dimethyl octadiene - 1,6 or 4 - vinyl cyclohexene - 1, the catalyst is Al(C 2 H 5 ) 2 Cl or Al 2 (C 2 H 5 ) 3 Cl 3  and VOCl 3  or vanadium tris acetylacetonate, and the polymers obtained are subjected to vulcanization using e.g. sulphur monochloride, sulphur and zinc oxide, optionally with the usual accelerators and also silica after forming into thin plates, and the vulcanized product subjected to stretching.
Patent GB-1278586-A (GB)
Title: Improvements in and relating to the production of regenerated cellulose sponge material
Inventor: MORGAN TOM MARTIN
IPC: B29C44/00
Filed: 1968-09-13
Abstract: 1278586 Regenerated cellulose sponges SPONCEL Ltd 11 Sept 1969 [13 Sept 1968] 43618/68 Headings C3A and C3C A regenerated cellulose sponge material is made from a sponge-forming viscose paste (i.e. a solution of sodium cellulose xanthate in caustic soda, sodium sulphate decahydrate, water, caustic soda and reinforcing fibres, e.g. of hemp or flax) by heating the sponge-forming viscose paste with passage of an alternating electric current therethrough until the crystals contained therein melt, discontinuing electrical heating at the point when the crystals have melted to leave a porous mass and subsequently heating the porous mass until regeneration is complete by circulating therethrough a heated liquid. The heated liquid may be an acid spray e.g. a mixture of sulphuric acid solution and sodium sulphate. The viscose paste may be extruded, prior to heating into a shined tubular cotton scrim. The electrodes carrying the current may be curved to shape the extrudate.
Patent GB-1323090-A (GB)
Title: Methods of balancing moving-coil assemblies for electric meters
IPC: G01R5/04
Filed: 1970-09-14
Abstract: 1323090 Indicating apparatus AGFAGEVAERT AG 14 Sept 1970 [16 Sept 1969] 43752/70 Heading G1J The moving coil assembly of an electric meter is balanced by inserting pins 9 into apertures 8 formed in a member 6 carried by the assembly. Member 6 is a plastics disc formed integrally with the pointer 7 and is preferably thicker on the side remote from the pointer. The member 8, a bearing socket 4 and a metal plate 3b are all carried on an intermediate part 3a. Two concentric arrays of apertures may be provided.
Patent GB-1128035-A (GB)
Title: Stretch yarn made of fibrous materials and process for producing the same
IPC: D02G3/32
Filed: 1965-10-15
Abstract: 1,128,035. Stretch yarns. SCHIPAT A.G. 15 Oct., 1965 [15 Oct., 1964], No. 43753/65. Headings D1F, D1P and D1W. A process of producing a stretch yarn comprises twisting together with metric twist coefficient of between 136 and 166 two single yarns which are of a cellulosic material and which are twisted in opposite senses but have a twist coefficient of between 106 and 122, and shrinking the plied yarn by treatment in a hot dilute caustic dyefor example sodium hydroxide of about .05% concentration by weight. The shrinking treatment may be applied to the yarn in an untensioned state before or after fabric formation.
Patent GB-1010859-A (GB)
Title: Spot welding metals by explosives
IPC: B23K20/08
Filed: 1963-11-06
Abstract: For use in explosive welding of metal sheets a granular explosive comprises 65% DDNP and 35% KClO3 and an explosive in cord form for connecting explosive welding cartridges comprises 70% PETN, 15% paraffin wax and 15% petroleum.
Patent GB-1120252-A (GB)
Title: Improvements relating to furnace gas cleaning in the melt-electrolytic production of aluminium
IPC: C01B7/19
Filed: 1965-10-18
Abstract: HF is removed from the gases developed in the electrolytic production of Al by mixing the gases with gaseous NH3 to form NH4F particles, which are separated out.  The NH3 may be mixed with the ventilation air, or may be introduced into the gas collecting chamber surrounding the anode, or into the waste gas suction system.  The NH4F may be separated by electrostatic precipitators, washing, or bag filters.
Patent GB-1325805-A (GB)
Title: Sparking plugs
IPC: H01T13/46
Filed: 1971-09-22
Abstract: 1325805 Sparking plugs ROBERT BOSCH GmbH 22 Sept 1971 [23 Sept 1970] 44112/71 Heading F1B A sparking plug has a surface discharge gap 10<SP>1</SP> and an earth electrode 14 projects from the plug housing 12 to form a spark gap with the central electrode 11. The surface discharge gap may be approximately twice as long as the other gap.
Patent GB-1183397-A (GB)
Title: Improved Mordenite Catalyst Compositions
IPC: C10G47/16
Filed: 1967-09-28
Abstract: 1,183,397. Mordenite zeolite. ESSO RESEARCH & ENG. CO. 28 Sept., 1967 [14 Oct., 19661, No. 44239/67. Heading B1E. [Also in Divisions C1 and C5] A mordenite catalyst having a SiO 2 /Al 2 O 3  molar ratio of at least 55 is prepared by treating a natural or synthetic mordenite with at least 1 N acid solution at a temperature not exceeding 220‹F for at least 1 hour. The catalyst may be impregnated with a platinum group metal, i.e. Pd, Pt, Ru, Rh, Os or Ir, preferably palladium or platinum, or may be used in a matrix of clay or an inorganic oxide gel. At least part of the hydrogen content may be replaced by metal cations having properties for the catalysing of hydrocarbon conversion reactions, these include Al, Be, Ca, Ce, Cr, Mg, Mn, Sr, Zn, Ag, Au, Cu, Fe, Ni, Sb and the rare earth metals either individually or, preferably, mixed. The mordenite has large pore diameters of 6.6A and smaller ones of 2.8A.
Patent GB-862117-A (GB)
Title: Improvements in and relating to energy converters
Inventor: BARTO CHARLES HERBERT
IPC: G21C17/04
Filed: 1959-12-31
Abstract: 862,117. Semi-conductor devices. UNION CARBIDE CORPORATION. Dec. 31, 1959, No. 44381/59. Class 37. During the manufacture of a silicon solar energy cell, Fig. 1, a disc 14 of N-type silicon, aluminium plated on one surface is fused on the opposite surface to a tin electrode disc 16 and on the same surface to an aluminium ring 12 surmounted by a tin ring 10. The aluminium plating is produced by vaporizing a piece of aluminium resting on a heated filament in an atmospheric of 10-<SP>4</SP> mm. of Hg. The components shown in Fig. 1 are then assembled on a graphite slab  with a weight on the stack. The whole is then placed in a cool section of a furnace to flush out adhering gases and then moved into a section at 960‹ C. flushed with argon where it remains for 9 minutes. Next the assembly is returned to the cool part of the furnace to allow the molten contacts to solidify. A cross-section of the device is shown in Fig. 3. The PN junction is formed by the penetration of the aluminium film into the silicon to a depth of 0.7 microns.
Patent GB-1150754-A (GB)
Title: Improvements relating to Apparatus for Cutting Optical Elements
IPC: B23Q35/10
Filed: 1966-10-06
Abstract: 1,150,754. Milling. INTERNATIONAL POLAROID CORP. 6 Oct., 1966 [7 Oct., 1965], No. 44740/66. Headings B3B and B3K. Apparatus for machining the edges of blanks of synthetic optical material to form optical elements of predetermined profile comprises a rotatable cutter assembly, a rotatable spindle assembly adapted to hold the blanks, means for biasing the cutter and spindle assemblies together for a machining operation, means for initiating drive of the spindle assembly upon engagement of the cutter with the blanks and means for varying the distance between the cutter axis and spindle axis to ensure the machining of the blank according to the predetermined profile. The spindle assembly 20 includes upper and lower shafts 24, 26 carrying clamping blocks 28, 36 and clamping means 50, e.g. hydraulic means, are provided for clamping a stack of blanks 22 therebetween. The spindle assembly 20 is mounted in a housing 16 which is pivotable about an input drive shaft 70, drive to cause the pivotal movement being transmitted through a clutch 84 to the housing. Pivotal movement of the housing 16 brings the blanks into engagement with the rotating cutter 52 which arrests the housing causing clutch 84 to slip which thereby initiates drive to the shafts 24, 26 through the gear trains 78, 80, 82 and 72, 74, 76. The upper shaft 24 carries a cam 30 which engages an adjustably positioned follower 62 located in a slide 60 above the cutter 52, the cam 30 having the required profile for the optical elements. Adjustment of the position of the follower 64 controls the size of the elements produced. The position of the follower may be automatically controlled to give first a rough heavy cut and then a final finishing cut, the spindle assembly being correspondingly controlled to make two revolutions. During the machining of the blanks the action of the slipping clutch is to bias the blanks against the cutter. After machining is completed the drive to the input shaft is reversed causing the housing to pivot away against a stop and the input shaft 70 to return to an index position determined by a ratchet-wheel 87 and pawl 89. A retractable and adjustable alignment member 42 is provided for correctly setting the blanks 22 in the clamping blocks 28, 36. In an alternative arrangement the cutter could be made movable to engage the blanks.
Patent GB-1524068-A (GB)
Title: Method of manufacturing radial tyres
IPC: B29C43/36
Filed: 1975-10-30
Abstract: 1524068 Making pneumatic tyres INDUSTRIE PIRELLI SpA 30 Oct 1975 [7 Nov 1974] 44862/75 Heading B7C A method of making a pneumatic tyre comprises the steps of shaping a radial carcass 6, built in cylindrical form on a building drum, to toroidal form by radial expansion and axial contraction of a cylindrical elastomeric shaping membrane 1 with a thickened central region 2, Fig. 2, applying to the shaped carcass 6 a pair of breaker plies 7, 8 of parallel metal cords inclined to the circumferential direction with the cords in one ply crossing those of the other, and further expanding the membrane 1 whereby lateral regions of the plies 7, 8 overlapping the edges of the region 2 assume a greater diameter than the central region of the plies 7, 8 overlying the region 2, Fig. 3, thus causing the angle at which the cords are inclined to become smaller in the lateral regions of the layers 7, 8 than in the central region thereof. The difference in cord angle between the central and lateral regions of the plies 7, 8 may be 2-4 degrees. The expansion of the membrane 1 from the Fig. 2 condition to the Fig. 3. condition may be such that D 2 -D 1  = 6-10 mm., where D 1  and D 2  are as shown. A ply or plies of textile cords arranged circumferentially of the tyre may be superposed on the layers 7, 8. The region 2 may be 7-10 mm. thicker than the remainder of the membrane 1, and may have a width up to 20 mm. less than that of the widest of the layers 7, 8.
Patent GB-1291816-A (GB)
Title: Drill pipe and drill collar spider
IPC: E21B19/06
Filed: 1970-09-22
Abstract: 1291816 Boring earth &c BYRON JACKSON Inc 22 Sept 1970 [6 Oct 1969] 45102/70 Heading E1F A spider adapted to rest on a rotary table 1 comprises a slip bowl 3, a set of drill collar slips CS, a set of pipe slips PS, and means 20 for holding each of the slips retracted. The slips PS, CS are respectively carried by linkages 15, 16, and whilst the slips CS are held retracted by latches 20, the linkages 15 are connected by pins 55 to a ring 28 which is moved axially by fluid pressure actuators 40 to move the slips PS to the pipe supporting position shown in Fig. 10. The slips PS may be disconnected from the ring and held retracted by the latches whilst the slips CS are connected to the ring and moved to support a drill collar. A section of the ring and a section of the spider housing 84 together with a pipe slip and its linkage are removable from the spider to permit it to be moved laterally from the pipe string.
Patent GB-1123358-A (GB)
Title: Moulding material suitable for making sliding elements
IPC: C08K3/26
Filed: 1966-10-10
Abstract: Mixtures comprise (1) an oxymethylene polymer having a melt index of 0.5 to 20 grams per 10 minutes at 190 DEG  C. in amounts of 70 to 99.5 parts by weight; and (2) chalk or calcite in an amount of 0.5 to 30 parts by weight.  The oxymethylene polymer may be a homopolymer of formaldehyde or trioxan, or a copolymer of trioxan e.g. with a cyclic ether or formal.  The mixtures may also contain stabilizers, pigments, dyestuffs, or processing auxiliaries, and may be used in the manufacture of bearings or sliding guides.  In the example, trioxan-ethylene oxide copolymers are mixed with chalk or calcite (in some cases coated with calcium stearate), 2,21-methylene - bis - (4 - methyl - 6 - t - butylphenol) and dicyanodiamide, and the mixtures extruded to form test specimens.  A comparative example illustrates the mixing of the trioxanethylene oxide copolymer with molybdenum disulphide.  Reference has been directed by the Comptroller to Specification 912,121.
Patent GB-1199569-A (GB)
Title: Remote Position Indicator System.
Inventor: WILES DAVID JOHN
IPC: G08C19/04
Filed: 1966-10-10
Abstract: 1, 199,569. Correspondance control systems. DOWTY ELECTRICS Ltd. Sept.29, 1967 [Oct. 10, 1966], No.45249/66. Heading G1N. Relates to a system for the remote indication of the positions of a plurality of valves in a petroleum installation, in which a respective variable resistor 13, Fig. 1 is mechanically coupled to each valve and the voltage across each resistor 13, when fed with constant magnitude direct current, controls the output of a respective transistor amplifier VT 2  connected to a meter M which indicates the respective valve position. There may be two series connected meters for each transducer resistor 13, one meter in a hazardous area adjacent the valve and the other m a safe area Fig. 3 (not shown). The amplifier units A, B, C, &c. may be in one rack in a safe area and contain no reactive components which could cause a spark having sufficient energy to ignite the inflammable gases in the hazardous vicinity of the transducers. Likewise a stabilized D.C. voltage supply source Fig. 2 (not shown), connected to lines 6, 7 is designed so that it cannot supply sufficient energy in the event of, for example, a short circuit in inter-connecting wiring in the hazardous area. In amplifier unit A, for instance, to provide the constant magnitude current through R13, R13 is connected in series with a transistor VT1, resistors RV2 and R2, a positive temperature coefficient resistor S1 being provided for temperature compensation. In parallel with R13 are RV1 in series with R6, the pre-set slider of RV1 being connected to apply a potential, proportional to the resistance of R13, to the base of transistor amplifier VT 2  so that the current through meter M is also proportional to R13 and indicative of the particular valve position.
Patent GB-1533731-A (GB)
Title: Apparatus for incinerating waste gases
IPC: F23G7/08
Filed: 1976-11-02
Abstract: 1533731 Flare stacks HITACHI SHIPBUILDING & ENG CO Ltd 2 Nov 1976 [16 April 1976] 45488/76 Heading F4T  A waste gas furnace assembly comprises a combustion furnace body 3, having a wall 1 and a hearth 2, a plurality of flare burners 4 on the hearth, each of which has a wall 11 and a base 12, with air intakes 10, 12, an inward flange 15 through which extend gas/air mixture tubes 16, a waste gas main 18, waste gas pipes 19 extending from the main, and a gas nozzle 20 mounted at the upper end of each pipe 19 and positioned at the end of each tube 16. The furnace is faced with refractory brick or plastics, and includes a stabilizer tube 5 also faced with bricks. Up to three of forty eight flare burners on the hearth are located in tube 5, and the furnace is supported on legs 8 and surrounded by a soundproof wall 9. In operation, waste gas is supplied from a duct 30 to a duct 25 which is connected to the burners in tube 5. When the gas reaches a predetermined pressure a detector 24 opens a valve 26 in a duct 27, and waste gas is supplied to the burners in an outer chamber 7. If gas is supplied at a rate in excess of the furnace capacity, a water seal in a drum 28 is broken and the excess waste gas flows into a flare stack 32.
Patent GB-1370746-A (GB)
Title: Data processing arrangements
IPC: G09B7/07
Filed: 1972-10-03
Abstract: 1370746 Selective signalling RICOH KK 3 Oct 1972 [4 Oct 1971] 45523/72 Heading G4H A dynamic response is sampled on a time scale selected according to the time taken to reach a predetermined value. In Figs. 5A, 5B, when a question is put to students, a pulse Ps sets a flip-flop FF to gate clock pulses to the A-counter shown, and when 5% of the students have responded, a pulse Pt resets the flip-flop so that clock pulses are gated to the B-counter shown instead. Whenever the two counters are equal, a pulse Pc is produced which resets the B-counter. Thus the period between successive pulses Pc is proportional to the time taken by 5% of the students to respond. The Pc pulses are counted at 22, the count being compared at 23 with the count of the X-counter shown which is driven by clock pulses Pl after division by 5 in a counter 19. Equality at 23 replaces a 5-bit slot in a 100-bit recirculating shift register 15 with the contents of a register 14 which is continually reloaded from a register 13 with a continually updated count of the number of student responses so far. The output of the reoirculating register 15 is also supplied via registers 16, 17 and a Y-decoder to select successive ordinate positions of a graphical display 12 which consists of a 20 x 20 matrix of discharge tubes or luminescent diodes. Successive abscissa positions are selected by an X-decoder controlled by the X-counter. Thus a curve of per cent student response against time is displayed, with the time scale normalized according to the measured time to reach 5% response. In a modification using a C.R.T. display of 20 x 20 dot positions, the contents of register 13 are decoded to 1-out-of-20 form before being passed to register 14 (which has 20 bit positions) and the recirculating register 15 has 400 bit positions and controls beam brightening in the C.R.T., the X and Y plates of which are driven via D/A converters from the X-counter and counter 19 respectively.
Patent GB-1326937-A (GB)
Title: Wood preservative
IPC: B27K3/40
Filed: 1970-09-24
Abstract: 1326937 Wood preservatives containing pentachlorophenol salts NORDDEUTSCHE AFFINERIE and C F SPIESS & SOHN 24 Sept 1970 [24 Sept 1969] 45655/70 Heading ASE  A wood preservative comprises a solution in an organic solvent of a salt of pentachlorophenol with ethylene diamine, diethylene tri-- amine or hexamethylene tetramine, the organic solvent being a monohydric or polyhydric alcohol, a ketone, a methylated naphthalene and/or a mineral oil containing aromatics. Optional ingredients are wetting agents, fungicides and/or insecticides, e.g. chloronaphthalenes, #- naphthol, nitrophenols, tar oil distillates, creosote, tri-n-butyl tin oxide, DDT, γ-hexachlorocyclohexane and diethyl p-nitro-phenyl thiophosphate.